Ya'll I just want to reccomend a show to you it's called Pokemon: Twilight Wings. You can watch it on pokemontv for free, just search up "pokemontv" and it'll pop right up. Even if you aren't really a fan of pokemon, it's really really good.
OK BUT THE ANIMATION THOUGH- The voice actors are so damn good. AND IT DOESN'T FEATURE ASH. I loove that. The episodes are are roughly about 6 minutes, but each one has a different story about different people (including gym leaders) I still would reccomend watching it if you don't know a single thing about pokemon. To be honest, I'm not in it as much as I was when I was kid, but it brang up some good nostalgia.
And for the people who do follow up on the latest pokemon, it features more on the characters from sword and shield. I loved how they included 'you' in the game as well as the anime. It adds a really nice touch, and makes you feel even more connected.